Home / 51,916.36-77,881.05-20,322.34

Finding the Fourth Proportional to 51,916.36, 77,881.05 and 20,322.34

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Solution

The fourth proportional to 51,916.36, 77,881.05 and 20,322.34 is: 30,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,916.36 : 77,881.05 = 20,322.34 : x
  2. Step 2: Convert to fraction form
    51,916.36/77,881.05 = 20,322.34/x
  3. Step 3: Cross multiply
    51,916.36x = 77,881.05 × 20,322.34
  4. Step 4: Simplify right side
    51,916.36x = 1,582,725,177.66
  5. Step 5: Solve for x
    x = 1,582,725,177.66/51,916.36
  6. Step 6: Final answer
    x = 30,486.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.